Back to today’s briefing

Story perspectives

Monroe's Kingsley Hill: America's Steepest Road Revealed

3/29/2025

47 9

Summary

Story summary

Massachusetts is home to some of the steepest roads in the country, including the notorious Rockwell Road and Hairpin Turn. Yet, Kingsley Hill Road in Monroe takes the crown with a staggering average gradient of 12.8% and peaks at 21.7%. Its first half mile is a grueling challenge, marking it as one of the toughest climbs in the continental U.S.

1 of 1

Story summary

Massachusetts is home to some of the steepest roads in the country, including the notorious Rockwell Road and Hairpin Turn. Yet, Kingsley Hill Road in Monroe takes the crown with a staggering average gradient of 12.8% and peaks at 21.7%. Its first half mile is a grueling challenge, marking it as one of the toughest climbs in the continental U.S.